Doubly-differential cross section calculations for $K$-shell vacancy production in lithium by fast O$^{8+}$ ion impact
Atomic Physics
2016-01-27 v1
Abstract
Inner-shell vacancy production for the O-Li collision system at 1.5 MeV/amu is studied theoretically. The theory combines single-electron amplitudes for each electron in the system to extract multielectron information about the collision process. Doubly-differential cross sections obtained in this way are then compared with the recent experimental data by LaForge et al. [J. Phys. B 46, 031001 (2013)] yielding good resemblance, especially for low outgoing electron energy. A careful analysis of the processes that contribute to inner-shell vacancy production shows that the improvement of the results as compared to single-active-electron calculations can be attributed to the leading role of two-electron excitation-ionization processes.
Keywords
Cite
@article{arxiv.1601.01340,
title = {Doubly-differential cross section calculations for $K$-shell vacancy production in lithium by fast O$^{8+}$ ion impact},
author = {M. D. Śpiewanowski and L. Gulyás and M. Horbatsch and T. Kirchner},
journal= {arXiv preprint arXiv:1601.01340},
year = {2016}
}